Improvement in stop-cock boxings



w. H. GRA-HAM.

Stop-Buck Bxngs. Q Patented Oct. 28,1873.,

Vlz'nesses.' d

zam.

Illlli III f wiLLiAu n. GRAHAM, or sr. Louis, Missoula.

IMPROVEMENT IN STOP-COCK BOXINGS.

Specicatou forming port of Letters Patent No. 143,978, dated October 28, 187,3; application filed September 22, 1673.

To all 'whom Iit may concern.'

Be it known that I, I'VILLIAM IVI. GRAHAM, of the city and county of St. Louis and State of Missouri, have made a certain new and useful Improved Water and Gas Stop-Cock Box and I do hereby declare that the following is a full and true description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon. Y

This invention relates to water, gas, or similar stop-cock boxes, casings, or housings, used to inelose the stop-cocks of gas, water, and similar pipes in streets, alleys, sidewalks, &c. The improvements here shown are designed to overcome certain difticulties and inconveniences hereinafter to appear, and in general to form animproved stop-cock box. The said improvements relate, first, to partly constructing the body of the stop-box oi' a square shape, the remainder being the ordinary round shape, and providing wit-hin the square chamber made opening and closing valves to control the interior p art or chamber of said boxing secondly, to the peculiar manner of hingin the lid, cover, or cap (that opens and closes the top ot' the box) to a connecting-arm, which is pivoted to one side of said box, thirdly, in providing the stop-cock box with an extension boxing, and to the peculiar manner oi' securing same in different positions as to height; lastly, to certain detail parts, all of which will now more fully appear. p

Of the drawings, Figure 'l is a side elevation. Fig. 2 is a sectional elevation. Fig. 3 is a top plan, showing cap closed.

A is the stop-cock box proper, having at its upper end a iiange, a, in the usual manner. The constructive shape of the box A I have improved, in order to adapt the same to the important feature following: It is well known that the ordinary stop-cock boxes frequently have their interior or chamber leading to the shutoft cock77 iilled or closed. with dirt, stones, rubbish, and the like impediments, and that not unfrequentl'y great difficulties are experienced to operate through said stop-eockboxes and get-at the shut-off cock to open and closethe same. To remedy these defects, and especially to protectthe lower chamber or parts of the box, I separate or divide the top chamber or part ot' the box from the lower part thereof by the following contrivance: I alter the ordinary constructive shape of the box A by forming the same square in shape, as at B, Figs. l and 2. Within the square chamber B thus made I have arranged, at two sides thereof, twoway valves, b b1, Figs. l and 2. The valves b bL have their valve-stems fitted to turn in the sides of the chamber B, and so as to open and close in the positions shown by dotted and full lines in Figs. l and 2. Vhen closed, (see dotted lines FiO. l, and full lines, Fig. 2,) the valves b b1 are supported on a lug` or bearing, b2, and w-hen opened fall back against the sides of the chamber B. (See dotted lines, Fig. 2.) vThe valve b can have its top edge anged, so as to fold over the top edge 'of the valve bl, as shown in Figs. l and 2.

The contrivance of the valves aforesaid, when closed, protects'the lower chamber ot' the box from undue accumulations, fillings, or impediments, can readily be opened, and thus said valve arrangement greatly facilitates the operator in getting at and operating the stop-cock.

My improvement, as relates to the'cap for the boxes, is as follows: The flange a., top of the box, has the proper seat, so that the cap C fits ush with the top of the said ilange when seated. The cap C I hinge at c to one end of a connecting-arm, c1. The other end of the connecting-arm c1 is pivoted at c2 within an offset, D, which is made and provided at one side of the box A, as shown in Figs. 1 and 2. The o't'tset D also makes allowance for the arm o] to be out of the way of the interior part of the box when s aid arm with its cap G is raised upright. (See Figs. l and 2.) The cap G can be readily raised, as the joints c c2 permit the arm cl to assume the vertical` position in oset D, and thus the full opening of the chamber of the box A is had: When closed, the cap O is lush with top of box A, Fig.` 3, and its connecting-arm cl assumes the position shown in full lines in Fig. 2. The cap C is thus secured, so as not to be liable to loss or disarrangement; and, further, additional strength and support are added to same by its arm c1, protecting said cap from the rough usage it is liable to. dinary. In order that the box Acanbe adapted to different depths, I have provided and made the extension-box Il The extension-box E is d d are side lugs or bearings, as orrounded, but somewhat tapering, so as to fit and be placed within the lower part of the main box A. At its lower end the box E has the entrance-slotsj, for the service=pipesto pass and Aconnect; as' usual. To secure the extension E in Various positions as to depth, with relation to the top box A, I provide the same With avert-ical running slot, F, having side slots f. (See Fig. l.) In the slotF ofthe box A thelug f', top of the extension-box E, is

fitted to pass. To hold and secure the said box E in required position its lug j" is placed in any of the side slots f of the box A, as indicated in Fig. l.

What I claim is- 1. The extension stop-cock box E,having lug f', in combination with box A, having running slot F and side slots f, as and for the purpose set forth.

WILLIAM H. GRAHAM.

Witnesses WILLIAM W. HERTHEL, CI-iAs. F. MEIsNER. 

